Automobile B column forming die
By using the combination of threaded rods and thread sleeves in automotive B-pillar forming molds to achieve slow ejection of the inserts, and combined with water circulation cooling technology, the quality problems caused by difficult parts pickup and high temperature in existing molds are solved, achieving a more efficient and stable production process.
Patent Information
- Application Number
- CN202422002428.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-19
AI Technical Summary
The mold seat design of existing automotive B-pillar forming molds is usually fixed, which leads to difficult parts pickup, affects production efficiency, and may increase the risk of part damage.
A B-pillar forming mold is designed to achieve slow ejection of the insert through the mating of the threaded rod and the threaded sleeve, ensuring the stability and integrity of the B-pillar parts during demolding, and reducing the surface temperature of the mold and parts through water circulation cooling.
Improve the stability and integrity of B-pillar parts, avoid deformation and cracks caused by rapid demolding, improve production efficiency, extend the service life of the mold, and optimize the surface quality of the parts.
Smart Images

Figure CN223030462U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile B-pillar part processing equipment. More specifically, the utility model relates to an automobile B-pillar forming die. Background Technique
[0002] An automobile B-pillar forming die is a precision tool designed specifically for producing automobile B-pillars. As a key structural component of an automobile body, the B-pillar plays an irreplaceable role in ensuring the stability and safety of the vehicle. Therefore, the design, manufacturing, and use processes of an automobile B-pillar forming die are crucial, as they directly relate to the quality and performance of the B-pillar. High-quality dies can ensure the precise forming of B-pillar parts and improve the overall quality of the vehicle. Manufacturers and users need to pay full attention to the accuracy, durability, and operational convenience of the die to ensure the production of B-pillar parts that meet the standards. In existing automobile B-pillar forming dies, the die base design usually adopts a fixed type. This method often makes it difficult to remove the parts after processing. Since the die base is fixed, operators often need to spend more time and effort when removing the B-pillar parts. This not only affects production efficiency but also brings many inconveniences to users. The fixed die base may also increase the risk of part damage because the parts may be subjected to unnecessary extrusion or collision during the forced removal process. Content of the Utility Model
[0003] In order to overcome the deficiencies of the prior art, the utility model provides an automobile B-pillar forming die, which has the advantage of facilitating the slow ejection of B-pillar parts.
[0004] To achieve the above object, the utility model provides the following technical solution: An automobile B-pillar forming die, including a workbench and a water tank. A vertical plate is fixedly installed at the top of the workbench, and a fixed plate is fixedly installed at the top of the vertical plate. A cylinder is fixedly installed at the bottom of one end of the fixed plate. A lower die is installed on the top of the workbench, and an upper die is fixedly installed at the top of the cylinder, and the upper die is movably arranged inside the lower die.
[0005] An insert block is movably installed inside the lower die. A threaded sleeve is fixedly installed at the bottom of the insert block, and the threaded sleeve is movably installed inside a box body. A threaded rod is movably installed inside the threaded sleeve. A box body is fixedly installed at the bottom of the threaded rod. A motor is fixedly installed inside the box body, and a first tooth is fixedly installed at the output end of the motor. The first tooth is in tooth engagement with a second tooth.
[0006] A push plate is movably installed on the back of the upper die. An electric push rod is fixedly installed on the back of the push plate, and the electric push rod completely penetrates through the inside of the vertical plate.
[0007] As a preferred technical solution of the utility model, an inclined plate is fixedly installed on the front side of the lower mold, a cooling pool is fixedly installed on the top of the workbench, a cavity is opened inside the cooling pool, a water pump is fixedly installed on the top of the workbench, a water inlet pipe is fixedly connected between the water pump and the cooling pool, a water suction pipe is fixedly installed on the outer surface of the water pump, and one end of the water suction pipe is inserted into the water pool, and a water outlet pipe is fixedly connected to the front side of the cooling pool.
[0008] As a preferred technical solution of the utility model, a slide groove is provided inside the workbench, and a tool box is fixedly installed inside the slide groove.
[0009] As a preferred technical solution of the utility model, reinforcing ribs are fixedly installed at the angle between the vertical plate and the fixed plate, and the reinforcing ribs are in a triangular shape.
[0010] As a preferred technical solution of the utility model, a support block is fixedly installed between the top of the workbench and the bottom of the water pump, and the interior of the support block presents a U-shape.
[0011] As a preferred technical solution of the utility model, the workbench is fixedly installed with a support plate, and fixing rods are fixedly installed inside the two support plates, and the fixing rods and the support plates are grouped in pairs, with a total of two groups at the bottom of the workbench.
[0012] As a preferred technical solution of the utility model, the distance from the fixing ring on the outer surface of the threaded sleeve to the top of the inner part of the box body is greater than the distance from the insert to the top of the lower mold.
[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0014] 1. Compared with the traditional mold, the utility model facilitates the slow ejection of the insert through the cooperation between the threaded rod and the threaded sleeve, thereby ensuring the stability and integrity of the B-pillar part during demolding and avoiding quality problems such as deformation and cracks that may be caused by rapid demolding. At the same time, it also helps to improve production efficiency. Although the demolding time of a single B-pillar part may increase, in the long run, by reducing rework and scrapping and extending the service life of the mold, the overall production efficiency is improved. In addition, the slow ejection design also reduces the friction and impact force between the mold and the part, thereby protecting the mold and reducing the frequency of maintenance and replacement.
[0015] 2. Compared with traditional molds, this utility model facilitates the water circulation inside the inclined plate through the cooperation between the water inlet pipe and the water outlet pipe, effectively reducing the surface temperature of the mold and the B-pillar parts, preventing material deformation and damage caused by high temperature, ensuring the stability of the B-pillar parts during the processing. At the same time, through water circulation cooling, the wear and damage of the mold are also greatly reduced, extending the service life of the mold, improving production efficiency. More importantly, this cooling method also optimizes the surface quality of the parts, avoiding oxidation and roughness problems that may be caused by high temperature, making the part surface smoother and more delicate. Generally speaking, the circulating cooling water not only improves the product quality during the B-pillar forming process, but also enhances the durability of the mold, bringing significant benefits to automobile manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a front three-dimensional structural schematic diagram of this utility model;
[0017] Figure 2 is a rear three-dimensional external structural schematic diagram of this utility model;
[0018] Figure 3 is a partial sectional structural schematic diagram of this utility model;
[0019] Figure 4 is a front sectional structural schematic diagram of this utility model;
[0020] Figure 5 is this utility model Figure 4 the enlarged structural schematic diagram of part A in;
[0021] Figure 6 is the exploded structural schematic diagram of the mold of this utility model.
[0022] In the figure: 1. Workbench; 2. Lower mold; 3. Vertical plate; 4. Fixed plate; 5. Cylinder; 6. Reinforcing rib; 7. Upper mold; 8. Cooling pool; 9. Water outlet pipe; 10. Water inlet pipe; 11. Water pump; 12. Support block; 13. Suction pipe; 14. Water tank; 15. Support plate; 16. Fixed rod; 17. Toolbox; 18. Slide groove; 19. Electric push rod; 20. Push plate; 21. Inclined plate; 22. Insert block; 23. Threaded sleeve; 24. Motor; 25. Threaded rod; 26. Tooth one; 27. Box body; 28. Tooth two; 29. Cavity. SPECIFIC EMBODIMENTS
[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0024] As Figures 1 to 6 shown, the present utility model provides an automobile B-pillar forming die, which includes a workbench 1 and a water tank 14. A vertical plate 3 is fixedly installed at the top of the workbench 1, a fixed plate 4 is fixedly installed at the top of the vertical plate 3, a cylinder 5 is fixedly installed at the bottom of one end of the fixed plate 4, a lower die 2 is installed at the top of the workbench 1, the top of the cylinder 5 is fixedly installed with an upper die 7, and the upper die 7 is movably arranged inside the lower die 2;
[0025] A insert block 22 is movably installed inside the lower die 2. A threaded sleeve 23 is fixedly installed at the bottom of the insert block 22, and the threaded sleeve 23 is movably installed inside a box body 27. A threaded rod 25 is movably installed inside the threaded sleeve 23. The bottom of the threaded rod 25 is fixedly installed with the box body 27. A motor 24 is fixedly installed inside the box body 27. A first tooth 26 is fixedly installed at the output end of the motor 24, and the first tooth 26 is in tooth engagement with a second tooth 28;
[0026] A push plate 20 is movably installed on the back of the upper die 7. An electric push rod 19 is fixedly installed on the back of the push plate 20, and the electric push rod 19 completely penetrates through the inside of the vertical plate 3.
[0027] After the B-pillar part is injection-molded, the staff needs to eject the B-pillar part in time. First, the cylinder 5 is opened at the bottom of the fixed plate 4, and the upper die 7 is slowly separated from the top of the lower die 2 through the cylinder 5. Now, the motor 24 is started, and the first tooth 26 is driven to rotate through the motor 24. Through the tooth engagement between the first tooth 26 and the second tooth 28, the second tooth 28 is driven to rotate through the threaded rod 25. The threaded rod 25 is driven to rotate inside the threaded sleeve 23 through the second tooth 28, so that the threaded sleeve 23 is slowly raised. The insert block 22 is extruded through the threaded sleeve 23, and the B-pillar part is slowly ejected through the insert block 22. The push plate 20 and the electric push rod 19 are pushed through the inside of the vertical plate 3, and the B-pillar part is pushed out of the lower die 2 through the push plate 20, thereby completing the ejection of the B-pillar part.
[0028] After the injection molding of the B-pillar part is completed, the B-pillar part needs to be ejected in a timely manner. First, the air cylinder 5 is opened at the bottom of the fixed plate 4, and the upper mold 7 is slowly separated from the top of the lower mold 2 through the air cylinder 5. Now, the motor 24 is turned on, and the motor 24 drives the first tooth 26 to rotate. The threaded rod 25 drives the second tooth 28 to rotate. The second tooth 28 drives the threaded rod 25 to rotate inside the threaded sleeve 23, causing the threaded sleeve 23 to slowly rise. The threaded sleeve 23 squeezes the insert 22, and the insert 22 slowly ejects the B-pillar part. Inside the vertical plate 3, the push plate 20 and the electric push rod 19 are pushed, and the push plate 20 ejects the B-pillar part out of the lower mold 2. Compared with traditional molds, the cooperation between the threaded rod 25 and the threaded sleeve 23 facilitates the slow ejection of the insert 22, ensuring the stability and integrity of the B-pillar part during demolding and avoiding quality problems such as deformation and cracks that may be caused by rapid demolding. At the same time, it helps to improve production efficiency. Although the demolding time of a single B-pillar part may increase, in the long run, by reducing rework and scrap and extending the service life of the mold, the overall production benefit is improved. In addition, the slow ejection design also reduces the friction and impact force between the mold and the part, thereby protecting the mold and reducing the frequency of maintenance and replacement.
[0029] Among them, a sloping plate 21 is fixedly installed on the front surface of the lower mold 2, a cooling pool 8 is fixedly installed on the top of the workbench 1, a cavity 29 is formed inside the cooling pool 8, a water pump 11 is fixedly installed on the top of the workbench 1, a water inlet pipe 10 is fixedly connected between the water pump 11 and the cooling pool 8, a water suction pipe 13 is fixedly installed on the outer surface of the water pump 11, and one end of the water suction pipe 13 is inserted into the inside of the water pool 14. An outlet pipe 9 is fixedly connected to the front surface of the cooling pool 8.
[0030] When the B-pillar part is ejected, the staff needs to quickly cool the B-pillar part. When the B-pillar part is pushed out by the push plate 20, the B-pillar part slowly flows into the inside of the cooling pool 8 through the sloping plate 21. Then the water pump 11 is turned on. At this time, water slowly enters the water suction pipe 13 and the water pump 11 through the water pool 14, enters the inside of the water inlet pipe 10 through the water pump 11, enters the inside of the cavity 29 through the water inlet pipe 10, fills the sloping plate 21. When the water reaches the inner horizontal line of the outlet pipe 9, it slowly flows out of the inside of the sloping plate 21 through the outlet pipe 9, and the water is collected by the water pool 14 and sucked into the inside of the water pump 11 through the water suction pipe 13 and enters the inside of the sloping plate 21 again, thus completing the recycling of water.
[0031] When the B-pillar part is ejected, it is necessary to cool the B-pillar part quickly. When the B-pillar part is withdrawn by the push plate 20, the B-pillar part slowly flows into the interior of the cooling pool 8 through the inclined plate 21, and then the water pump 11 is turned on. At this time, water slowly enters the suction pipe 13 and the water pump 11 through the water pool 14, and then enters the interior of the water inlet pipe 10 through the water pump 11, and then enters the interior of the cavity 29 through the water inlet pipe 10. By filling the inclined plate 21, when the water reaches the internal horizontal line of the outlet pipe 9, it slowly flows out of the inclined plate 21 through the outlet pipe 9. Compared with the traditional mold, the mold is convenient for the inner part of the inclined plate 21 through the cooperation between the inlet pipe 10 and the outlet pipe 9. The water circulation in the mold effectively reduces the surface temperature of the mold and B-pillar parts, prevents material deformation and damage caused by high temperature, and ensures the stability of the B-pillar parts during the processing. At the same time, through water circulation cooling, the wear and damage of the mold are also greatly reduced, which extends the service life of the mold and improves production efficiency. More importantly, this cooling method also optimizes the surface quality of the parts, avoids oxidation and roughness problems that may be caused by high temperature, and makes the surface of the parts smoother and more delicate. In general, circulating cooling water in the B-pillar molding process not only improves product quality, but also enhances the durability of the mold, bringing significant benefits to automobile manufacturing.
[0032] A slide groove 18 is provided inside the workbench 1 , and a tool box 17 is fixedly installed inside the slide groove 18 .
[0033] By holding the tool box 17, the tool box 17 is slowly placed into the chute 18, and the tool box 17 is fixed by the chute 18. By adding the tool box 17, it is convenient for workers to quickly take the required tools and accessories, reducing the time of finding and taking tools, thereby significantly improving work efficiency.
[0034] A reinforcing rib 6 is fixedly installed at the angle between the vertical plate 3 and the fixed plate 4, and the reinforcing rib 6 is in a triangular shape.
[0035] Since the reinforcing rib 6 is in a triangular shape at the angle between the vertical plate 3 and the fixed plate 4 , it is convenient for the fixed plate 4 to support the cylinder 5 , thereby improving the operating efficiency of the cylinder 5 .
[0036] A support block 12 is fixedly installed between the top of the workbench 1 and the bottom of the water pump 11 , and the interior of the support block 12 is in a U-shape.
[0037] Since the support block 12 is in a U-shape between the top of the workbench 1 and the bottom of the water pump 11 , it is convenient to operate the support block 12 , thus ensuring the stability of the support block 12 during operation and extending the service life of the support block 12 .
[0038] Among them, the workbench 1 is fixedly installed with a support plate 15. Inside the two support plates 15, a fixed rod 16 is fixedly installed, and the fixed rod 16 and the support plate 15 are in pairs, with a total of two groups at the bottom of the workbench 1.
[0039] Since the fixed rod 16 and the support plate 15 are in pairs, with a total of two groups at the bottom of the workbench 1, through the cooperation between the fixed rod 16 and the support plate 15, it is convenient to support the workbench 1, significantly enhancing the stability of the mold during the processing, reducing vibration and shaking, thereby ensuring the processing accuracy and product quality.
[0040] Among them, the distance from the fixed ring on the outer surface of the threaded sleeve 23 to the top inside the box body 27 is greater than the distance from the insert block 22 to the top of the lower mold 2.
[0041] Since the distance from the fixed ring on the outer surface of the threaded sleeve 23 to the top inside the box body 27 is greater than the distance from the insert block 22 to the top of the lower mold 2, it is convenient to eject the B-pillar part in the insert block 22, improving the ejection efficiency of the B-pillar part.
[0042] The working principle and usage process of the present utility model:
[0043] After the injection molding of the B-pillar part is completed by the staff, it is necessary to eject the B-pillar part in time. First, the air cylinder 5 is opened at the bottom of the fixed plate 4, and the upper mold 7 is slowly separated from the top of the lower mold 2 through the air cylinder 5. Now, the motor 24 is turned on, and the motor 24 drives the first tooth 26 to rotate. Through the tooth engagement between the first tooth 26 and the second tooth 28, the threaded rod 25 drives the second tooth 28 to rotate. The second tooth 28 drives the threaded rod 25 to rotate inside the threaded sleeve 23, causing the threaded sleeve 23 to slowly rise. Then, the threaded sleeve 23 squeezes the insert block 22, and the insert block 22 slowly ejects the B-pillar part. Inside the vertical plate 3, the push plate 20 and the electric push rod 19 are pushed, and the push plate 20 pushes the B-pillar part out of the lower mold 2, thus completing the ejection of the B-pillar part.
[0044] When the staff ejects the B-pillar part, it is necessary to quickly cool the B-pillar part. When the B-pillar part is pushed out by the push plate 20, the B-pillar part slowly flows into the cooling pool 8 through the inclined plate 21. Then, the water pump 11 is turned on. At this time, the water slowly enters the suction pipe 13 and the water pump 11 through the water pool 14, enters the inside of the water inlet pipe 10 through the water pump 11, enters the inside of the cavity 29 through the water inlet pipe 10, fills the inclined plate 21. When the water reaches the horizontal line inside the water outlet pipe 9, it slowly flows out of the inside of the inclined plate 21 through the water outlet pipe 9. The water is collected by the water pool 14, sucked into the inside of the water pump 11 through the suction pipe 13, and enters the inside of the inclined plate 21 again, thus completing the recycling of water.
[0045] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.
[0046] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A B-pillar forming mold for an automobile, comprising a workbench (1) and a water pool (14), characterized in that: A vertical plate (3) is fixedly mounted on the top of the workbench (1), a fixed plate (4) is fixedly mounted on the top of the vertical plate (3), a cylinder (5) is fixedly mounted on the bottom of one end of the fixed plate (4), a lower mold (2) is mounted on the top of the workbench (1), an upper mold (7) is fixedly mounted on the top of the cylinder (5), and the upper mold (7) moves the interior of the lower mold (2); An insert (22) is movably mounted inside the lower mold (2), a threaded sleeve (23) is fixedly mounted at the bottom of the insert (22), and the threaded sleeve (23) is movably mounted inside a box (27), a threaded rod (25) is movably mounted inside the threaded sleeve (23), a box (27) is fixedly mounted at the bottom of the threaded rod (25), a motor (24) is fixedly mounted inside the box (27), a tooth 1 (26) is fixedly mounted at the output end of the motor (24), and the tooth 1 (26) is meshed with the tooth 2 (28); A push plate (20) is movably mounted on the back of the upper mold (7), and an electric push rod (19) is fixedly mounted on the back of the push plate (20), and the electric push rod (19) completely penetrates the interior of the vertical plate (3).
2. The automobile B-pillar forming mold according to claim 1, characterized in that: A sloping plate (21) is fixedly mounted on the front of the lower mold (2); a cooling pool (8) is fixedly mounted on the top of the workbench (1); a cavity (29) is provided inside the cooling pool (8); a water pump (11) is fixedly mounted on the top of the workbench (1); a water inlet pipe (10) is fixedly connected between the water pump (11) and the cooling pool (8); a water suction pipe (13) is fixedly mounted on the outer surface of the water pump (11), and one end of the water suction pipe (13) is inserted into the interior of the water pool (14); and a water outlet pipe (9) is fixedly connected to the front of the cooling pool (8).
3. The automobile B-pillar forming mold according to claim 1, characterized in that: A slide groove (18) is provided inside the workbench (1), and a tool box (17) is fixedly installed inside the slide groove (18).
4. The automobile B-pillar forming mold according to claim 1, characterized in that: A reinforcing rib (6) is fixedly installed at the angle between the vertical plate (3) and the fixed plate (4), and the reinforcing rib (6) is in a triangular shape.
5. The automobile B-pillar forming mold according to claim 1, characterized in that: A support block (12) is fixedly installed between the top of the workbench (1) and the bottom of the water pump (11), and the interior of the support block (12) is in a U-shape.
6. The automobile B-pillar forming mold according to claim 1, characterized in that: The workbench (1) is fixedly mounted with a support plate (15), and two fixing rods (16) are fixedly mounted inside the two support plates (15), and the fixing rods (16) and the support plates (15) are arranged in pairs, with a total of two groups at the bottom of the workbench (1).
7. The automobile B-pillar forming mold according to claim 1, characterized in that: The distance from the fixing ring on the outer surface of the threaded sleeve (23) to the top of the interior of the box body (27) is greater than the distance from the insert (22) to the top of the lower mold (2).